This paper uses a two-country, monetary general equilibrium model with imperfect competition to study the optimal rate of inflation in an open economy. In contrast with the closed economy literature, when policy is set non-cooperatively in the open economy, the optimality of the Friedman rule --...

We study how firm boundaries are affected by the reduction in search costs when business-to-business electronic markets are adopted. Our paper analyzes a multi-tier industry in which upstream parts suppliers incur procurement search costs, and downstream manufacturers incur incentive contracting...

This paper shows that monitoring too much a partner in the initial phase of a relationship may not be optimal if the goal is to determine his loyalty to the match and if the cost of ending the relationship increases over time. The intuition is simple: by monitoring too much we learn less on how...

We construct and estimate a joint model of macroeconomic and yield curve dynamics. A small-scale backward/forward-looking rational expectations model describes the macroeconomy. Bond yields are affine functions of the state variables of the macromodel, and are derived assuming absence of...

We develop LM-tests of linearity that are consistent against a class of Compound Smooth Transition Autoregressive (CoSTAR) models of the conditional mean. Our method is an extension of the sup-test developed by Bierens (1990) and Bierens and Plobeger (1997), provides maximal power against...

This paper contributes to the debate on trade and wages by estimating a GNP function for the United Kingdom using data for the period 1975-1999. Consistent with standard trade theory the GNP function treats factor supplies and output prices as exogenous and factor prices and output supplies as...

This paper develops a model in which a continuum of consumers choose from a continuum of locations indexed by school quality. It computes equilibria that are sustained by an equilibrium price function that matches consumers to different locations based on their willingness to pay for school...

Standard models of moral hazard predict a negative relationship between risk and incentives, but the empirical work has not confirmed this prediction. In this paper, we propose a model with adverse selection followed by moral hazard, where effort and the degree of risk aversion are private...

This paper is an adaptation of the Chamley-Gale endogenous-timing information-revelation model of investment (Econometrica 1994). It models a game with pure informational externality where agents can learn by observing others' actions. The social learning can result in herding and possibly in an...

A crucial assumption in the optimal auction literature has been that each bidder's valuation is known to be drawn from a single unique distribution. In this paper we relax this assumption and study the optimal auction problem when there is ambiguity about the distribution from which these...